anthracnose of sorghum

例句：

1. 1.The disease is a major threat to thesorghum crop.
   这种疾病是高粱作物的主要威胁。
2. 2. The farmers are trying to controlthe spread of this disease.
   农民们正在试图控制这种疾病的传播。
3. 3. Scientists have been studying thesymptoms and causes of this diseasefor years.
   科学家们已经研究了这种疾病的症状和原因多年。